Eccentricity correction method, signal processing circuit,...

Details Eccentricity correction method, signal processing circuit,... Eccentricity correction method, signal processing circuit,...

2006-06-23

2009-12-08

Negrón, Daniell L (Department: 2627)

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data in specific format

C360S051000, C360S077040

Reexamination Certificate

active

07630155

ABSTRACT:
A magnetic storage apparatus has a reproducing head to reproduce information from a perpendicular magnetic recording medium that is recorded with servo information, eccentricity correction data and read/write data. The apparatus further has a filter part to filter a reproduced output of the reproducing head by filtering the servo information which has a differentiated waveform by a non-differentiating characteristic and by filtering the eccentricity correction data and the read/write data which have rectangular waveforms by a differentiating characteristic, a demodulating part to demodulate the servo information, the eccentricity correction data and the read/write data that are filtered by the filter part, and a servo system to carry out a control process including an eccentricity control based on the servo information and the eccentricity correction data that are demodulated.

REFERENCES:
patent: 6791774 (2004-09-01), Albrecht et al.
patent: 6963459 (2005-11-01), Sakai
patent: 7023634 (2006-04-01), Takeo
patent: 7057834 (2006-06-01), Ishida et al.
patent: 7061703 (2006-06-01), Ishida et al.
patent: 7136245 (2006-11-01), Mori et al.
patent: 2003/0179481 (2003-09-01), McNeil et al.
patent: 09-312028 (1997-12-01), None
patent: 10-172156 (1998-06-01), None
patent: 2001-297433 (2001-10-01), None
patent: 2003-45120 (2003-02-01), None
patent: 2003-109317 (2003-04-01), None
patent: 2003-272137 (2003-09-01), None
patent: 2004-342297 (2004-12-01), None
patent: 2005-243160 (2005-09-01), None

Affiliated with

Also associated with

Rating

Eccentricity correction method, signal processing circuit,... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Eccentricity correction method, signal processing circuit,..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Eccentricity correction method, signal processing circuit,... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4053732